In the face of the elderly who are deeply involved in health care products fraud, children should first care about the physical condition and diseases of the elderly. Only in this way can we gain the trust of the elderly. At this time, it is timely to suggest the elderly to listen to some regular health programs and attend some regular health lectures. After understanding this knowledge, the elderly will not be easily fooled. If the elderly insist on buying health care products, it is not the way to oppose them blindly. In this case, children can persuade the elderly to buy less, try the effect first, and finally persuade the elderly to give up buying because the product is invalid.